Fiche vulnérabilité
CVE-2024-26739 : faille élevée debian debian linux (CVSS 7.8)
Description
In the Linux kernel, the following vulnerability has been resolved: net/sched: act_mirred: don't override retval if we already lost the skb If we're redirecting the skb, and haven't called tcf_mirred_forward(), yet, we need to tell the core to drop the skb by setting the retcode to SHOT. If we have called tcf_mirred_forward(), however, the skb is out of our hands and returning SHOT will lead to UaF. Move the retval override to the error path which actually need it.
En bref
- Sévérité
- Élevée (CVSS 7.8)
- Vecteur CVSS
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Exploitation active
- Non signalée par la CISA
- Publication
- 3 avr. 2024
- Dernière mise à jour
- 4 août 2026
Produits concernés
- debian debian linux
- linux linux kernel
Références
- Fiche CVE-2024-26739 sur le NVD (NIST)
- git.kernel.org/stable/c/0117fe0a4615a7c8d30d6ebcbf87332fbe63e…
- git.kernel.org/stable/c/166c2c8a6a4dc2e4ceba9e10cfe81c3e469e3…
- git.kernel.org/stable/c/28cdbbd38a4413b8eff53399b3f872fd4e80d…
- git.kernel.org/stable/c/9d3ef89b6a5e9f2e940de2cef3d543be0be8d…
- git.kernel.org/stable/c/e873e8f7d03a2ee5b77fb1a305c782fed98e2…
- git.kernel.org/stable/c/f4e294bbdca8ac8757db436fc82214f3882fc…
- lists.debian.org/debian-lts-announce/2025/05/msg00045.html
- lists.debian.org/debian-lts-announce/2025/10/msg00007.html